When peewits seem thus to battle together with their wings, in the air, it may well be that they are really fighting, in which case we may perhaps assume that they are two males, and not male and female. But as what I shall have to say with regard to the stock-dove on this point may be applied to the peewit, and as I have better evidence in the case of the former bird, I will not dwell on it longer here.
But the question arises whether in many other cases, when the sporting birds would seem to be male and female, this is really the case. One is apt to think so at first, but when one sees, often, a third bird associate itself with a pair who are thus behaving, and join for a little in their antics, or when one of a pair desisting and alighting on the ground, the other continues to sport in precisely the same way with another bird, or when, again, the supposed lovers become two of a small flock or band, and all sport thus together, crossing and intermingling till they again separate: one must suppose that these evolutions, though they may be mostly of a nuptial character, are not sexual in the strictest sense of the term, but that the social element enters more or less largely into them. But amongst savages there are, I believe (if not, let us imagine that there are), dances, the theme of which is marriage, where sometimes men, sometimes women, sometimes men and women, dance together, all having in their mind the primitive ideas suggested by that great institution, men thinking of women, women of men, under every kind of grouping. One may suppose it to be thus with the peewits, as they sport with one another in the air during the nuptial season, in which case the social and sexual elements would be a
